CVE-2023-43907

Publication date 1 October 2023

Last updated 26 August 2025

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

Description

OptiPNG v0.7.7 was discovered to contain a global buffer overflow via the 'buffer' variable at gifread.c.

Read the notes from the security team

Why is this CVE low priority?

Denial of service only in command-line tool

Learn more about Ubuntu priority

Status

Package Ubuntu Release Status
optipng 25.10 questing
Not affected
25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic Ignored end of life, was deferred [2023-10-10]
23.04 lunar Ignored end of life, was deferred [2023-10-10]
22.04 LTS jammy
Vulnerable
20.04 LTS focal
Vulnerable
18.04 LTS bionic
Vulnerable
16.04 LTS xenial
Vulnerable
14.04 LTS trusty Ignored end of standard support

Notes

mdeslaur

Can't reproduce with PoC on focal, jammy, and lunar. This is an out-of-bounds read in a command-line tool, unlikely to have any security impact.

Severity score breakdown

Parameter Value
Base score 7.8 · High
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Other references